Home / 127,815.52-176,386.65-70,457.07

Finding the Fourth Proportional to 127,815.52, 176,386.65 and 70,457.07

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Solution

The fourth proportional to 127,815.52, 176,386.65 and 70,457.07 is: 97,231.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,815.52 : 176,386.65 = 70,457.07 : x
  2. Step 2: Convert to fraction form
    127,815.52/176,386.65 = 70,457.07/x
  3. Step 3: Cross multiply
    127,815.52x = 176,386.65 × 70,457.07
  4. Step 4: Simplify right side
    127,815.52x = 12,427,686,546.12
  5. Step 5: Solve for x
    x = 12,427,686,546.12/127,815.52
  6. Step 6: Final answer
    x = 97,231.44

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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.