Home / 84,916.80-127,229.40-70,045.20

Finding the Fourth Proportional to 84,916.80, 127,229.40 and 70,045.20

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Solution

The fourth proportional to 84,916.80, 127,229.40 and 70,045.20 is: 104,947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,916.80 : 127,229.40 = 70,045.20 : x
  2. Step 2: Convert to fraction form
    84,916.80/127,229.40 = 70,045.20/x
  3. Step 3: Cross multiply
    84,916.80x = 127,229.40 × 70,045.20
  4. Step 4: Simplify right side
    84,916.80x = 8,911,808,768.88
  5. Step 5: Solve for x
    x = 8,911,808,768.88/84,916.80
  6. Step 6: Final answer
    x = 104,947.53

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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.