Home / 130,430.62-180,915.12-126,973.79

Finding the Fourth Proportional to 130,430.62, 180,915.12 and 126,973.79

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Solution

The fourth proportional to 130,430.62, 180,915.12 and 126,973.79 is: 176,120.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,430.62 : 180,915.12 = 126,973.79 : x
  2. Step 2: Convert to fraction form
    130,430.62/180,915.12 = 126,973.79/x
  3. Step 3: Cross multiply
    130,430.62x = 180,915.12 × 126,973.79
  4. Step 4: Simplify right side
    130,430.62x = 22,971,478,454.70
  5. Step 5: Solve for x
    x = 22,971,478,454.70/130,430.62
  6. Step 6: Final answer
    x = 176,120.29

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.