Home / 145,437.47-200,538.23-102,403.20

Finding the Fourth Proportional to 145,437.47, 200,538.23 and 102,403.20

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Solution

The fourth proportional to 145,437.47, 200,538.23 and 102,403.20 is: 141,199.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,437.47 : 200,538.23 = 102,403.20 : x
  2. Step 2: Convert to fraction form
    145,437.47/200,538.23 = 102,403.20/x
  3. Step 3: Cross multiply
    145,437.47x = 200,538.23 × 102,403.20
  4. Step 4: Simplify right side
    145,437.47x = 20,535,755,962.32
  5. Step 5: Solve for x
    x = 20,535,755,962.32/145,437.47
  6. Step 6: Final answer
    x = 141,199.90

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1.5x scale

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.