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Finding the Fourth Proportional to 130,737.74, 180,403.20 and 73,365.20

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Solution

The fourth proportional to 130,737.74, 180,403.20 and 73,365.20 is: 101,235.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,737.74 : 180,403.20 = 73,365.20 : x
  2. Step 2: Convert to fraction form
    130,737.74/180,403.20 = 73,365.20/x
  3. Step 3: Cross multiply
    130,737.74x = 180,403.20 × 73,365.20
  4. Step 4: Simplify right side
    130,737.74x = 13,235,316,848.64
  5. Step 5: Solve for x
    x = 13,235,316,848.64/130,737.74
  6. Step 6: Final answer
    x = 101,235.63

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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.