Home / 153,657.11-211,564.28-130,641.67

Finding the Fourth Proportional to 153,657.11, 211,564.28 and 130,641.67

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Solution

The fourth proportional to 153,657.11, 211,564.28 and 130,641.67 is: 179,875.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,657.11 : 211,564.28 = 130,641.67 : x
  2. Step 2: Convert to fraction form
    153,657.11/211,564.28 = 130,641.67/x
  3. Step 3: Cross multiply
    153,657.11x = 211,564.28 × 130,641.67
  4. Step 4: Simplify right side
    153,657.11x = 27,639,110,851.55
  5. Step 5: Solve for x
    x = 27,639,110,851.55/153,657.11
  6. Step 6: Final answer
    x = 179,875.25

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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.