Home / 127,790.32-176,351.80-70,431.68

Finding the Fourth Proportional to 127,790.32, 176,351.80 and 70,431.68

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Solution

The fourth proportional to 127,790.32, 176,351.80 and 70,431.68 is: 97,196.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,790.32 : 176,351.80 = 70,431.68 : x
  2. Step 2: Convert to fraction form
    127,790.32/176,351.80 = 70,431.68/x
  3. Step 3: Cross multiply
    127,790.32x = 176,351.80 × 70,431.68
  4. Step 4: Simplify right side
    127,790.32x = 12,420,753,545.02
  5. Step 5: Solve for x
    x = 12,420,753,545.02/127,790.32
  6. Step 6: Final answer
    x = 97,196.36

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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.