Home / 105,270.84-145,275.66-57,526.20

Finding the Fourth Proportional to 105,270.84, 145,275.66 and 57,526.20

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Solution

The fourth proportional to 105,270.84, 145,275.66 and 57,526.20 is: 79,387.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,270.84 : 145,275.66 = 57,526.20 : x
  2. Step 2: Convert to fraction form
    105,270.84/145,275.66 = 57,526.20/x
  3. Step 3: Cross multiply
    105,270.84x = 145,275.66 × 57,526.20
  4. Step 4: Simplify right side
    105,270.84x = 8,357,156,672.29
  5. Step 5: Solve for x
    x = 8,357,156,672.29/105,270.84
  6. Step 6: Final answer
    x = 79,387.19

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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.