Home / 158,088.30-218,150.98-90,103.58

Finding the Fourth Proportional to 158,088.30, 218,150.98 and 90,103.58

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Solution

The fourth proportional to 158,088.30, 218,150.98 and 90,103.58 is: 124,336.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,088.30 : 218,150.98 = 90,103.58 : x
  2. Step 2: Convert to fraction form
    158,088.30/218,150.98 = 90,103.58/x
  3. Step 3: Cross multiply
    158,088.30x = 218,150.98 × 90,103.58
  4. Step 4: Simplify right side
    158,088.30x = 19,656,184,278.51
  5. Step 5: Solve for x
    x = 19,656,184,278.51/158,088.30
  6. Step 6: Final answer
    x = 124,336.74

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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.