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Finding the Fourth Proportional to 96,886.60, 145,329.90 and 91,443.40

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Solution

The fourth proportional to 96,886.60, 145,329.90 and 91,443.40 is: 137,165.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,886.60 : 145,329.90 = 91,443.40 : x
  2. Step 2: Convert to fraction form
    96,886.60/145,329.90 = 91,443.40/x
  3. Step 3: Cross multiply
    96,886.60x = 145,329.90 × 91,443.40
  4. Step 4: Simplify right side
    96,886.60x = 13,289,460,177.66
  5. Step 5: Solve for x
    x = 13,289,460,177.66/96,886.60
  6. Step 6: Final answer
    x = 137,165.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.