Home / 99,424.35-137,205.86-54,102.32

Finding the Fourth Proportional to 99,424.35, 137,205.86 and 54,102.32

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Solution

The fourth proportional to 99,424.35, 137,205.86 and 54,102.32 is: 74,661.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,424.35 : 137,205.86 = 54,102.32 : x
  2. Step 2: Convert to fraction form
    99,424.35/137,205.86 = 54,102.32/x
  3. Step 3: Cross multiply
    99,424.35x = 137,205.86 × 54,102.32
  4. Step 4: Simplify right side
    99,424.35x = 7,423,155,343.60
  5. Step 5: Solve for x
    x = 7,423,155,343.60/99,424.35
  6. Step 6: Final answer
    x = 74,661.34

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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.