Home / 158,277.32-218,422.71-86,657.34

Finding the Fourth Proportional to 158,277.32, 218,422.71 and 86,657.34

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Solution

The fourth proportional to 158,277.32, 218,422.71 and 86,657.34 is: 119,587.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,277.32 : 218,422.71 = 86,657.34 : x
  2. Step 2: Convert to fraction form
    158,277.32/218,422.71 = 86,657.34/x
  3. Step 3: Cross multiply
    158,277.32x = 218,422.71 × 86,657.34
  4. Step 4: Simplify right side
    158,277.32x = 18,927,931,863.28
  5. Step 5: Solve for x
    x = 18,927,931,863.28/158,277.32
  6. Step 6: Final answer
    x = 119,587.14

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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.