Home / 112,140.13-168,210.16-76,973.17

Finding the Fourth Proportional to 112,140.13, 168,210.16 and 76,973.17

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Solution

The fourth proportional to 112,140.13, 168,210.16 and 76,973.17 is: 115,459.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,140.13 : 168,210.16 = 76,973.17 : x
  2. Step 2: Convert to fraction form
    112,140.13/168,210.16 = 76,973.17/x
  3. Step 3: Cross multiply
    112,140.13x = 168,210.16 × 76,973.17
  4. Step 4: Simplify right side
    112,140.13x = 12,947,669,241.41
  5. Step 5: Solve for x
    x = 12,947,669,241.41/112,140.13
  6. Step 6: Final answer
    x = 115,459.73

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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.