Home / 145,609.17-201,002.66-97,890.20

Finding the Fourth Proportional to 145,609.17, 201,002.66 and 97,890.20

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Solution

The fourth proportional to 145,609.17, 201,002.66 and 97,890.20 is: 135,130.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,609.17 : 201,002.66 = 97,890.20 : x
  2. Step 2: Convert to fraction form
    145,609.17/201,002.66 = 97,890.20/x
  3. Step 3: Cross multiply
    145,609.17x = 201,002.66 × 97,890.20
  4. Step 4: Simplify right side
    145,609.17x = 19,676,189,373.68
  5. Step 5: Solve for x
    x = 19,676,189,373.68/145,609.17
  6. Step 6: Final answer
    x = 135,130.15

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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.