Home / 508,126.08-762,189.40-129,075.24

Finding the Fourth Proportional to 508,126.08, 762,189.40 and 129,075.24

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Solution

The fourth proportional to 508,126.08, 762,189.40 and 129,075.24 is: 193,612.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,126.08 : 762,189.40 = 129,075.24 : x
  2. Step 2: Convert to fraction form
    508,126.08/762,189.40 = 129,075.24/x
  3. Step 3: Cross multiply
    508,126.08x = 762,189.40 × 129,075.24
  4. Step 4: Simplify right side
    508,126.08x = 98,379,779,730.46
  5. Step 5: Solve for x
    x = 98,379,779,730.46/508,126.08
  6. Step 6: Final answer
    x = 193,612.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.