Home / 106,902.19-160,560.88-78,710.90

Finding the Fourth Proportional to 106,902.19, 160,560.88 and 78,710.90

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Solution

The fourth proportional to 106,902.19, 160,560.88 and 78,710.90 is: 118,219.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,902.19 : 160,560.88 = 78,710.90 : x
  2. Step 2: Convert to fraction form
    106,902.19/160,560.88 = 78,710.90/x
  3. Step 3: Cross multiply
    106,902.19x = 160,560.88 × 78,710.90
  4. Step 4: Simplify right side
    106,902.19x = 12,637,891,574.22
  5. Step 5: Solve for x
    x = 12,637,891,574.22/106,902.19
  6. Step 6: Final answer
    x = 118,219.20

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1.5x scale

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.