Home / 158,224.95-218,341.98-86,591.12

Finding the Fourth Proportional to 158,224.95, 218,341.98 and 86,591.12

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Solution

The fourth proportional to 158,224.95, 218,341.98 and 86,591.12 is: 119,491.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,224.95 : 218,341.98 = 86,591.12 : x
  2. Step 2: Convert to fraction form
    158,224.95/218,341.98 = 86,591.12/x
  3. Step 3: Cross multiply
    158,224.95x = 218,341.98 × 86,591.12
  4. Step 4: Simplify right side
    158,224.95x = 18,906,475,499.51
  5. Step 5: Solve for x
    x = 18,906,475,499.51/158,224.95
  6. Step 6: Final answer
    x = 119,491.11

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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.