Home / 158,521.64-218,759.70-86,902.28

Finding the Fourth Proportional to 158,521.64, 218,759.70 and 86,902.28

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Solution

The fourth proportional to 158,521.64, 218,759.70 and 86,902.28 is: 119,925.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,521.64 : 218,759.70 = 86,902.28 : x
  2. Step 2: Convert to fraction form
    158,521.64/218,759.70 = 86,902.28/x
  3. Step 3: Cross multiply
    158,521.64x = 218,759.70 × 86,902.28
  4. Step 4: Simplify right side
    158,521.64x = 19,010,716,702.12
  5. Step 5: Solve for x
    x = 19,010,716,702.12/158,521.64
  6. Step 6: Final answer
    x = 119,925.06

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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.