Home / 140,038.08-193,248.24-76,377.12

Finding the Fourth Proportional to 140,038.08, 193,248.24 and 76,377.12

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Solution

The fourth proportional to 140,038.08, 193,248.24 and 76,377.12 is: 105,398.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,038.08 : 193,248.24 = 76,377.12 : x
  2. Step 2: Convert to fraction form
    140,038.08/193,248.24 = 76,377.12/x
  3. Step 3: Cross multiply
    140,038.08x = 193,248.24 × 76,377.12
  4. Step 4: Simplify right side
    140,038.08x = 14,759,744,016.27
  5. Step 5: Solve for x
    x = 14,759,744,016.27/140,038.08
  6. Step 6: Final answer
    x = 105,398.07

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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.