Home / 132,931.72-183,439.92-72,501.13

Finding the Fourth Proportional to 132,931.72, 183,439.92 and 72,501.13

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Solution

The fourth proportional to 132,931.72, 183,439.92 and 72,501.13 is: 100,048.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,931.72 : 183,439.92 = 72,501.13 : x
  2. Step 2: Convert to fraction form
    132,931.72/183,439.92 = 72,501.13/x
  3. Step 3: Cross multiply
    132,931.72x = 183,439.92 × 72,501.13
  4. Step 4: Simplify right side
    132,931.72x = 13,299,601,487.11
  5. Step 5: Solve for x
    x = 13,299,601,487.11/132,931.72
  6. Step 6: Final answer
    x = 100,048.37

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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.