Home / 105,120.11-157,700.93-38,560.82

Finding the Fourth Proportional to 105,120.11, 157,700.93 and 38,560.82

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Solution

The fourth proportional to 105,120.11, 157,700.93 and 38,560.82 is: 57,848.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,120.11 : 157,700.93 = 38,560.82 : x
  2. Step 2: Convert to fraction form
    105,120.11/157,700.93 = 38,560.82/x
  3. Step 3: Cross multiply
    105,120.11x = 157,700.93 × 38,560.82
  4. Step 4: Simplify right side
    105,120.11x = 6,081,076,519.61
  5. Step 5: Solve for x
    x = 6,081,076,519.61/105,120.11
  6. Step 6: Final answer
    x = 57,848.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.