Home / 105,559.59-145,666.80-57,803.70

Finding the Fourth Proportional to 105,559.59, 145,666.80 and 57,803.70

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Solution

The fourth proportional to 105,559.59, 145,666.80 and 57,803.70 is: 79,766.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,559.59 : 145,666.80 = 57,803.70 : x
  2. Step 2: Convert to fraction form
    105,559.59/145,666.80 = 57,803.70/x
  3. Step 3: Cross multiply
    105,559.59x = 145,666.80 × 57,803.70
  4. Step 4: Simplify right side
    105,559.59x = 8,420,080,007.16
  5. Step 5: Solve for x
    x = 8,420,080,007.16/105,559.59
  6. Step 6: Final answer
    x = 79,766.13

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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.