Home / 121,287.04-167,363.28-70,315.76

Finding the Fourth Proportional to 121,287.04, 167,363.28 and 70,315.76

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Solution

The fourth proportional to 121,287.04, 167,363.28 and 70,315.76 is: 97,028.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,287.04 : 167,363.28 = 70,315.76 : x
  2. Step 2: Convert to fraction form
    121,287.04/167,363.28 = 70,315.76/x
  3. Step 3: Cross multiply
    121,287.04x = 167,363.28 × 70,315.76
  4. Step 4: Simplify right side
    121,287.04x = 11,768,276,647.70
  5. Step 5: Solve for x
    x = 11,768,276,647.70/121,287.04
  6. Step 6: Final answer
    x = 97,028.31

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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.