Home / 151,316.08-208,841.15-115,438.34

Finding the Fourth Proportional to 151,316.08, 208,841.15 and 115,438.34

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Solution

The fourth proportional to 151,316.08, 208,841.15 and 115,438.34 is: 159,323.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,316.08 : 208,841.15 = 115,438.34 : x
  2. Step 2: Convert to fraction form
    151,316.08/208,841.15 = 115,438.34/x
  3. Step 3: Cross multiply
    151,316.08x = 208,841.15 × 115,438.34
  4. Step 4: Simplify right side
    151,316.08x = 24,108,276,490.39
  5. Step 5: Solve for x
    x = 24,108,276,490.39/151,316.08
  6. Step 6: Final answer
    x = 159,323.96

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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.