Home / 128,068.12-192,060.60-42,656.24

Finding the Fourth Proportional to 128,068.12, 192,060.60 and 42,656.24

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Solution

The fourth proportional to 128,068.12, 192,060.60 and 42,656.24 is: 63,970.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,068.12 : 192,060.60 = 42,656.24 : x
  2. Step 2: Convert to fraction form
    128,068.12/192,060.60 = 42,656.24/x
  3. Step 3: Cross multiply
    128,068.12x = 192,060.60 × 42,656.24
  4. Step 4: Simplify right side
    128,068.12x = 8,192,583,048.14
  5. Step 5: Solve for x
    x = 8,192,583,048.14/128,068.12
  6. Step 6: Final answer
    x = 63,970.51

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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.