Home / 140,348.28-193,681.98-76,686.07

Finding the Fourth Proportional to 140,348.28, 193,681.98 and 76,686.07

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Solution

The fourth proportional to 140,348.28, 193,681.98 and 76,686.07 is: 105,827.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,348.28 : 193,681.98 = 76,686.07 : x
  2. Step 2: Convert to fraction form
    140,348.28/193,681.98 = 76,686.07/x
  3. Step 3: Cross multiply
    140,348.28x = 193,681.98 × 76,686.07
  4. Step 4: Simplify right side
    140,348.28x = 14,852,709,876.02
  5. Step 5: Solve for x
    x = 14,852,709,876.02/140,348.28
  6. Step 6: Final answer
    x = 105,827.52

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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.