Home / 123,351.14-170,225.99-72,364.74

Finding the Fourth Proportional to 123,351.14, 170,225.99 and 72,364.74

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Solution

The fourth proportional to 123,351.14, 170,225.99 and 72,364.74 is: 99,864.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,351.14 : 170,225.99 = 72,364.74 : x
  2. Step 2: Convert to fraction form
    123,351.14/170,225.99 = 72,364.74/x
  3. Step 3: Cross multiply
    123,351.14x = 170,225.99 × 72,364.74
  4. Step 4: Simplify right side
    123,351.14x = 12,318,359,145.77
  5. Step 5: Solve for x
    x = 12,318,359,145.77/123,351.14
  6. Step 6: Final answer
    x = 99,864.17

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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.