Home / 105,747.13-145,931.25-58,000.87

Finding the Fourth Proportional to 105,747.13, 145,931.25 and 58,000.87

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Solution

The fourth proportional to 105,747.13, 145,931.25 and 58,000.87 is: 80,041.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,747.13 : 145,931.25 = 58,000.87 : x
  2. Step 2: Convert to fraction form
    105,747.13/145,931.25 = 58,000.87/x
  3. Step 3: Cross multiply
    105,747.13x = 145,931.25 × 58,000.87
  4. Step 4: Simplify right side
    105,747.13x = 8,464,139,460.19
  5. Step 5: Solve for x
    x = 8,464,139,460.19/105,747.13
  6. Step 6: Final answer
    x = 80,041.32

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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.