Home / 124,706.16-172,039.70-76,310.39

Finding the Fourth Proportional to 124,706.16, 172,039.70 and 76,310.39

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Solution

The fourth proportional to 124,706.16, 172,039.70 and 76,310.39 is: 105,274.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,706.16 : 172,039.70 = 76,310.39 : x
  2. Step 2: Convert to fraction form
    124,706.16/172,039.70 = 76,310.39/x
  3. Step 3: Cross multiply
    124,706.16x = 172,039.70 × 76,310.39
  4. Step 4: Simplify right side
    124,706.16x = 13,128,417,223.36
  5. Step 5: Solve for x
    x = 13,128,417,223.36/124,706.16
  6. Step 6: Final answer
    x = 105,274.81

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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.