Home / 99,480.15-137,280.02-54,159.03

Finding the Fourth Proportional to 99,480.15, 137,280.02 and 54,159.03

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Solution

The fourth proportional to 99,480.15, 137,280.02 and 54,159.03 is: 74,738.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,480.15 : 137,280.02 = 54,159.03 : x
  2. Step 2: Convert to fraction form
    99,480.15/137,280.02 = 54,159.03/x
  3. Step 3: Cross multiply
    99,480.15x = 137,280.02 × 54,159.03
  4. Step 4: Simplify right side
    99,480.15x = 7,434,952,450.79
  5. Step 5: Solve for x
    x = 7,434,952,450.79/99,480.15
  6. Step 6: Final answer
    x = 74,738.05

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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.