Home / 105,470.08-145,541.40-60,149.98

Finding the Fourth Proportional to 105,470.08, 145,541.40 and 60,149.98

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Solution

The fourth proportional to 105,470.08, 145,541.40 and 60,149.98 is: 83,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,470.08 : 145,541.40 = 60,149.98 : x
  2. Step 2: Convert to fraction form
    105,470.08/145,541.40 = 60,149.98/x
  3. Step 3: Cross multiply
    105,470.08x = 145,541.40 × 60,149.98
  4. Step 4: Simplify right side
    105,470.08x = 8,754,311,571.47
  5. Step 5: Solve for x
    x = 8,754,311,571.47/105,470.08
  6. Step 6: Final answer
    x = 83,002.80

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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.