Home / 121,061.40-181,397.70-101,232.60

Finding the Fourth Proportional to 121,061.40, 181,397.70 and 101,232.60

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Solution

The fourth proportional to 121,061.40, 181,397.70 and 101,232.60 is: 151,686.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,061.40 : 181,397.70 = 101,232.60 : x
  2. Step 2: Convert to fraction form
    121,061.40/181,397.70 = 101,232.60/x
  3. Step 3: Cross multiply
    121,061.40x = 181,397.70 × 101,232.60
  4. Step 4: Simplify right side
    121,061.40x = 18,363,360,805.02
  5. Step 5: Solve for x
    x = 18,363,360,805.02/121,061.40
  6. Step 6: Final answer
    x = 151,686.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.