Home / 112,188.80-168,233.96-42,018.90

Finding the Fourth Proportional to 112,188.80, 168,233.96 and 42,018.90

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Solution

The fourth proportional to 112,188.80, 168,233.96 and 42,018.90 is: 63,009.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,188.80 : 168,233.96 = 42,018.90 : x
  2. Step 2: Convert to fraction form
    112,188.80/168,233.96 = 42,018.90/x
  3. Step 3: Cross multiply
    112,188.80x = 168,233.96 × 42,018.90
  4. Step 4: Simplify right side
    112,188.80x = 7,069,005,941.84
  5. Step 5: Solve for x
    x = 7,069,005,941.84/112,188.80
  6. Step 6: Final answer
    x = 63,009.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.