Home / 132,159.79-182,297.55-78,406.75

Finding the Fourth Proportional to 132,159.79, 182,297.55 and 78,406.75

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Solution

The fourth proportional to 132,159.79, 182,297.55 and 78,406.75 is: 108,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,159.79 : 182,297.55 = 78,406.75 : x
  2. Step 2: Convert to fraction form
    132,159.79/182,297.55 = 78,406.75/x
  3. Step 3: Cross multiply
    132,159.79x = 182,297.55 × 78,406.75
  4. Step 4: Simplify right side
    132,159.79x = 14,293,358,428.46
  5. Step 5: Solve for x
    x = 14,293,358,428.46/132,159.79
  6. Step 6: Final answer
    x = 108,152.10

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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.