Home / 112,521.10-155,346.48-70,137.04

Finding the Fourth Proportional to 112,521.10, 155,346.48 and 70,137.04

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Solution

The fourth proportional to 112,521.10, 155,346.48 and 70,137.04 is: 96,831.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,521.10 : 155,346.48 = 70,137.04 : x
  2. Step 2: Convert to fraction form
    112,521.10/155,346.48 = 70,137.04/x
  3. Step 3: Cross multiply
    112,521.10x = 155,346.48 × 70,137.04
  4. Step 4: Simplify right side
    112,521.10x = 10,895,542,281.62
  5. Step 5: Solve for x
    x = 10,895,542,281.62/112,521.10
  6. Step 6: Final answer
    x = 96,831.10

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1.5x scale

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.