Home / 121,547.16-167,690.46-76,227.06

Finding the Fourth Proportional to 121,547.16, 167,690.46 and 76,227.06

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Solution

The fourth proportional to 121,547.16, 167,690.46 and 76,227.06 is: 105,165.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,547.16 : 167,690.46 = 76,227.06 : x
  2. Step 2: Convert to fraction form
    121,547.16/167,690.46 = 76,227.06/x
  3. Step 3: Cross multiply
    121,547.16x = 167,690.46 × 76,227.06
  4. Step 4: Simplify right side
    121,547.16x = 12,782,550,755.85
  5. Step 5: Solve for x
    x = 12,782,550,755.85/121,547.16
  6. Step 6: Final answer
    x = 105,165.36

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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.