Home / 123,803,610.75-170,668,917.27-86,518,133.01

Finding the Fourth Proportional to 123,803,610.75, 170,668,917.27 and 86,518,133.01

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Solution

The fourth proportional to 123,803,610.75, 170,668,917.27 and 86,518,133.01 is: 119,269,187.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,803,610.75 : 170,668,917.27 = 86,518,133.01 : x
  2. Step 2: Convert to fraction form
    123,803,610.75/170,668,917.27 = 86,518,133.01/x
  3. Step 3: Cross multiply
    123,803,610.75x = 170,668,917.27 × 86,518,133.01
  4. Step 4: Simplify right side
    123,803,610.75x = 14,765,956,085,038,548
  5. Step 5: Solve for x
    x = 14,765,956,085,038,548/123,803,610.75
  6. Step 6: Final answer
    x = 119,269,187.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.