Home / 158,124.14-218,209.51-86,503.33

Finding the Fourth Proportional to 158,124.14, 218,209.51 and 86,503.33

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Solution

The fourth proportional to 158,124.14, 218,209.51 and 86,503.33 is: 119,373.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,124.14 : 218,209.51 = 86,503.33 : x
  2. Step 2: Convert to fraction form
    158,124.14/218,209.51 = 86,503.33/x
  3. Step 3: Cross multiply
    158,124.14x = 218,209.51 × 86,503.33
  4. Step 4: Simplify right side
    158,124.14x = 18,875,849,252.67
  5. Step 5: Solve for x
    x = 18,875,849,252.67/158,124.14
  6. Step 6: Final answer
    x = 119,373.61

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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.