Home / 152,970.70-211,095.18-87,561.16

Finding the Fourth Proportional to 152,970.70, 211,095.18 and 87,561.16

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Solution

The fourth proportional to 152,970.70, 211,095.18 and 87,561.16 is: 120,831.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,970.70 : 211,095.18 = 87,561.16 : x
  2. Step 2: Convert to fraction form
    152,970.70/211,095.18 = 87,561.16/x
  3. Step 3: Cross multiply
    152,970.70x = 211,095.18 × 87,561.16
  4. Step 4: Simplify right side
    152,970.70x = 18,483,738,831.21
  5. Step 5: Solve for x
    x = 18,483,738,831.21/152,970.70
  6. Step 6: Final answer
    x = 120,831.89

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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.