Home / 121,320.63-167,423.13-70,363.56

Finding the Fourth Proportional to 121,320.63, 167,423.13 and 70,363.56

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Solution

The fourth proportional to 121,320.63, 167,423.13 and 70,363.56 is: 97,102.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,320.63 : 167,423.13 = 70,363.56 : x
  2. Step 2: Convert to fraction form
    121,320.63/167,423.13 = 70,363.56/x
  3. Step 3: Cross multiply
    121,320.63x = 167,423.13 × 70,363.56
  4. Step 4: Simplify right side
    121,320.63x = 11,780,487,453.14
  5. Step 5: Solve for x
    x = 11,780,487,453.14/121,320.63
  6. Step 6: Final answer
    x = 97,102.10

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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.