Home / 98,128.80-146,438.55-97,567.47

Finding the Fourth Proportional to 98,128.80, 146,438.55 and 97,567.47

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Solution

The fourth proportional to 98,128.80, 146,438.55 and 97,567.47 is: 145,600.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,128.80 : 146,438.55 = 97,567.47 : x
  2. Step 2: Convert to fraction form
    98,128.80/146,438.55 = 97,567.47/x
  3. Step 3: Cross multiply
    98,128.80x = 146,438.55 × 97,567.47
  4. Step 4: Simplify right side
    98,128.80x = 14,287,638,833.97
  5. Step 5: Solve for x
    x = 14,287,638,833.97/98,128.80
  6. Step 6: Final answer
    x = 145,600.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.