Home / 127,792.18-176,346.01-70,431.32

Finding the Fourth Proportional to 127,792.18, 176,346.01 and 70,431.32

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Solution

The fourth proportional to 127,792.18, 176,346.01 and 70,431.32 is: 97,191.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,792.18 : 176,346.01 = 70,431.32 : x
  2. Step 2: Convert to fraction form
    127,792.18/176,346.01 = 70,431.32/x
  3. Step 3: Cross multiply
    127,792.18x = 176,346.01 × 70,431.32
  4. Step 4: Simplify right side
    127,792.18x = 12,420,281,027.15
  5. Step 5: Solve for x
    x = 12,420,281,027.15/127,792.18
  6. Step 6: Final answer
    x = 97,191.25

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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.