Home / 132,871.08-183,363.16-72,442.16

Finding the Fourth Proportional to 132,871.08, 183,363.16 and 72,442.16

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Solution

The fourth proportional to 132,871.08, 183,363.16 and 72,442.16 is: 99,970.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,871.08 : 183,363.16 = 72,442.16 : x
  2. Step 2: Convert to fraction form
    132,871.08/183,363.16 = 72,442.16/x
  3. Step 3: Cross multiply
    132,871.08x = 183,363.16 × 72,442.16
  4. Step 4: Simplify right side
    132,871.08x = 13,283,223,374.83
  5. Step 5: Solve for x
    x = 13,283,223,374.83/132,871.08
  6. Step 6: Final answer
    x = 99,970.76

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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.