Home / 145,429.17-200,624.90-85,002.36

Finding the Fourth Proportional to 145,429.17, 200,624.90 and 85,002.36

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Solution

The fourth proportional to 145,429.17, 200,624.90 and 85,002.36 is: 117,263.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,429.17 : 200,624.90 = 85,002.36 : x
  2. Step 2: Convert to fraction form
    145,429.17/200,624.90 = 85,002.36/x
  3. Step 3: Cross multiply
    145,429.17x = 200,624.90 × 85,002.36
  4. Step 4: Simplify right side
    145,429.17x = 17,053,589,549.75
  5. Step 5: Solve for x
    x = 17,053,589,549.75/145,429.17
  6. Step 6: Final answer
    x = 117,263.89

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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.