Home / 127,420.08-175,839.48-70,831.28

Finding the Fourth Proportional to 127,420.08, 175,839.48 and 70,831.28

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Solution

The fourth proportional to 127,420.08, 175,839.48 and 70,831.28 is: 97,747.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,420.08 : 175,839.48 = 70,831.28 : x
  2. Step 2: Convert to fraction form
    127,420.08/175,839.48 = 70,831.28/x
  3. Step 3: Cross multiply
    127,420.08x = 175,839.48 × 70,831.28
  4. Step 4: Simplify right side
    127,420.08x = 12,454,935,442.93
  5. Step 5: Solve for x
    x = 12,454,935,442.93/127,420.08
  6. Step 6: Final answer
    x = 97,747.04

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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.