Home / 145,897.15-218,845.75-112,665.69

Finding the Fourth Proportional to 145,897.15, 218,845.75 and 112,665.69

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Solution

The fourth proportional to 145,897.15, 218,845.75 and 112,665.69 is: 168,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,897.15 : 218,845.75 = 112,665.69 : x
  2. Step 2: Convert to fraction form
    145,897.15/218,845.75 = 112,665.69/x
  3. Step 3: Cross multiply
    145,897.15x = 218,845.75 × 112,665.69
  4. Step 4: Simplify right side
    145,897.15x = 24,656,407,427.32
  5. Step 5: Solve for x
    x = 24,656,407,427.32/145,897.15
  6. Step 6: Final answer
    x = 168,998.55

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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.