Home / 127,870.25-176,457.51-70,508.57

Finding the Fourth Proportional to 127,870.25, 176,457.51 and 70,508.57

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Solution

The fourth proportional to 127,870.25, 176,457.51 and 70,508.57 is: 97,299.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,870.25 : 176,457.51 = 70,508.57 : x
  2. Step 2: Convert to fraction form
    127,870.25/176,457.51 = 70,508.57/x
  3. Step 3: Cross multiply
    127,870.25x = 176,457.51 × 70,508.57
  4. Step 4: Simplify right side
    127,870.25x = 12,441,765,813.57
  5. Step 5: Solve for x
    x = 12,441,765,813.57/127,870.25
  6. Step 6: Final answer
    x = 97,299.93

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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.