Home / 158,153.80-218,252.10-86,534.12

Finding the Fourth Proportional to 158,153.80, 218,252.10 and 86,534.12

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Solution

The fourth proportional to 158,153.80, 218,252.10 and 86,534.12 is: 119,417.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,153.80 : 218,252.10 = 86,534.12 : x
  2. Step 2: Convert to fraction form
    158,153.80/218,252.10 = 86,534.12/x
  3. Step 3: Cross multiply
    158,153.80x = 218,252.10 × 86,534.12
  4. Step 4: Simplify right side
    158,153.80x = 18,886,253,411.65
  5. Step 5: Solve for x
    x = 18,886,253,411.65/158,153.80
  6. Step 6: Final answer
    x = 119,417.01

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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.