Home / 205,545.60-308,404.80-112,118.40

Finding the Fourth Proportional to 205,545.60, 308,404.80 and 112,118.40

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Solution

The fourth proportional to 205,545.60, 308,404.80 and 112,118.40 is: 168,224.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,545.60 : 308,404.80 = 112,118.40 : x
  2. Step 2: Convert to fraction form
    205,545.60/308,404.80 = 112,118.40/x
  3. Step 3: Cross multiply
    205,545.60x = 308,404.80 × 112,118.40
  4. Step 4: Simplify right side
    205,545.60x = 34,577,852,728.32
  5. Step 5: Solve for x
    x = 34,577,852,728.32/205,545.60
  6. Step 6: Final answer
    x = 168,224.73

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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.