Home / 101,545.14-140,127.72-56,219.94

Finding the Fourth Proportional to 101,545.14, 140,127.72 and 56,219.94

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Solution

The fourth proportional to 101,545.14, 140,127.72 and 56,219.94 is: 77,580.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,545.14 : 140,127.72 = 56,219.94 : x
  2. Step 2: Convert to fraction form
    101,545.14/140,127.72 = 56,219.94/x
  3. Step 3: Cross multiply
    101,545.14x = 140,127.72 × 56,219.94
  4. Step 4: Simplify right side
    101,545.14x = 7,877,972,010.74
  5. Step 5: Solve for x
    x = 7,877,972,010.74/101,545.14
  6. Step 6: Final answer
    x = 77,580.99

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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.