Home / 105,745.55-145,925.28-62,750.57

Finding the Fourth Proportional to 105,745.55, 145,925.28 and 62,750.57

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Solution

The fourth proportional to 105,745.55, 145,925.28 and 62,750.57 is: 86,593.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,745.55 : 145,925.28 = 62,750.57 : x
  2. Step 2: Convert to fraction form
    105,745.55/145,925.28 = 62,750.57/x
  3. Step 3: Cross multiply
    105,745.55x = 145,925.28 × 62,750.57
  4. Step 4: Simplify right side
    105,745.55x = 9,156,893,767.78
  5. Step 5: Solve for x
    x = 9,156,893,767.78/105,745.55
  6. Step 6: Final answer
    x = 86,593.66

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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.