Home / 99,428.74-137,211.90-54,106.69

Finding the Fourth Proportional to 99,428.74, 137,211.90 and 54,106.69

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Solution

The fourth proportional to 99,428.74, 137,211.90 and 54,106.69 is: 74,667.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,428.74 : 137,211.90 = 54,106.69 : x
  2. Step 2: Convert to fraction form
    99,428.74/137,211.90 = 54,106.69/x
  3. Step 3: Cross multiply
    99,428.74x = 137,211.90 × 54,106.69
  4. Step 4: Simplify right side
    99,428.74x = 7,424,081,737.61
  5. Step 5: Solve for x
    x = 7,424,081,737.61/99,428.74
  6. Step 6: Final answer
    x = 74,667.36

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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.