Home / 76,151.70-105,088.02-42,159.46

Finding the Fourth Proportional to 76,151.70, 105,088.02 and 42,159.46

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Solution

The fourth proportional to 76,151.70, 105,088.02 and 42,159.46 is: 58,179.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,151.70 : 105,088.02 = 42,159.46 : x
  2. Step 2: Convert to fraction form
    76,151.70/105,088.02 = 42,159.46/x
  3. Step 3: Cross multiply
    76,151.70x = 105,088.02 × 42,159.46
  4. Step 4: Simplify right side
    76,151.70x = 4,430,454,175.67
  5. Step 5: Solve for x
    x = 4,430,454,175.67/76,151.70
  6. Step 6: Final answer
    x = 58,179.32

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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.