Home / 105,979.16-146,259.40-60,671.40

Finding the Fourth Proportional to 105,979.16, 146,259.40 and 60,671.40

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Solution

The fourth proportional to 105,979.16, 146,259.40 and 60,671.40 is: 83,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,979.16 : 146,259.40 = 60,671.40 : x
  2. Step 2: Convert to fraction form
    105,979.16/146,259.40 = 60,671.40/x
  3. Step 3: Cross multiply
    105,979.16x = 146,259.40 × 60,671.40
  4. Step 4: Simplify right side
    105,979.16x = 8,873,762,561.16
  5. Step 5: Solve for x
    x = 8,873,762,561.16/105,979.16
  6. Step 6: Final answer
    x = 83,731.20

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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.