Home / 142,253.16-213,513.66-72,182.76

Finding the Fourth Proportional to 142,253.16, 213,513.66 and 72,182.76

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Solution

The fourth proportional to 142,253.16, 213,513.66 and 72,182.76 is: 108,342.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,253.16 : 213,513.66 = 72,182.76 : x
  2. Step 2: Convert to fraction form
    142,253.16/213,513.66 = 72,182.76/x
  3. Step 3: Cross multiply
    142,253.16x = 213,513.66 × 72,182.76
  4. Step 4: Simplify right side
    142,253.16x = 15,412,005,276.50
  5. Step 5: Solve for x
    x = 15,412,005,276.50/142,253.16
  6. Step 6: Final answer
    x = 108,342.09

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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.