Home / 145,710.47-218,436.04-56,943.79

Finding the Fourth Proportional to 145,710.47, 218,436.04 and 56,943.79

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Solution

The fourth proportional to 145,710.47, 218,436.04 and 56,943.79 is: 85,365.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,710.47 : 218,436.04 = 56,943.79 : x
  2. Step 2: Convert to fraction form
    145,710.47/218,436.04 = 56,943.79/x
  3. Step 3: Cross multiply
    145,710.47x = 218,436.04 × 56,943.79
  4. Step 4: Simplify right side
    145,710.47x = 12,438,574,613.29
  5. Step 5: Solve for x
    x = 12,438,574,613.29/145,710.47
  6. Step 6: Final answer
    x = 85,365.00

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.