Home / 157,460.76-236,066.40-78,534.36

Finding the Fourth Proportional to 157,460.76, 236,066.40 and 78,534.36

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Solution

The fourth proportional to 157,460.76, 236,066.40 and 78,534.36 is: 117,739.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,460.76 : 236,066.40 = 78,534.36 : x
  2. Step 2: Convert to fraction form
    157,460.76/236,066.40 = 78,534.36/x
  3. Step 3: Cross multiply
    157,460.76x = 236,066.40 × 78,534.36
  4. Step 4: Simplify right side
    157,460.76x = 18,539,323,641.50
  5. Step 5: Solve for x
    x = 18,539,323,641.50/157,460.76
  6. Step 6: Final answer
    x = 117,739.33

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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.