Home / 253,140.04-379,710.06-66,151.72

Finding the Fourth Proportional to 253,140.04, 379,710.06 and 66,151.72

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Solution

The fourth proportional to 253,140.04, 379,710.06 and 66,151.72 is: 99,227.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,140.04 : 379,710.06 = 66,151.72 : x
  2. Step 2: Convert to fraction form
    253,140.04/379,710.06 = 66,151.72/x
  3. Step 3: Cross multiply
    253,140.04x = 379,710.06 × 66,151.72
  4. Step 4: Simplify right side
    253,140.04x = 25,118,473,570.30
  5. Step 5: Solve for x
    x = 25,118,473,570.30/253,140.04
  6. Step 6: Final answer
    x = 99,227.58

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1.5x scale

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.