Home / 127,929.46-176,543.32-70,570.78

Finding the Fourth Proportional to 127,929.46, 176,543.32 and 70,570.78

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Solution

The fourth proportional to 127,929.46, 176,543.32 and 70,570.78 is: 97,388.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,929.46 : 176,543.32 = 70,570.78 : x
  2. Step 2: Convert to fraction form
    127,929.46/176,543.32 = 70,570.78/x
  3. Step 3: Cross multiply
    127,929.46x = 176,543.32 × 70,570.78
  4. Step 4: Simplify right side
    127,929.46x = 12,458,799,796.19
  5. Step 5: Solve for x
    x = 12,458,799,796.19/127,929.46
  6. Step 6: Final answer
    x = 97,388.04

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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.