Home / 105,014.10-157,521.15-103,631.70

Finding the Fourth Proportional to 105,014.10, 157,521.15 and 103,631.70

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Solution

The fourth proportional to 105,014.10, 157,521.15 and 103,631.70 is: 155,447.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,014.10 : 157,521.15 = 103,631.70 : x
  2. Step 2: Convert to fraction form
    105,014.10/157,521.15 = 103,631.70/x
  3. Step 3: Cross multiply
    105,014.10x = 157,521.15 × 103,631.70
  4. Step 4: Simplify right side
    105,014.10x = 16,324,184,560.46
  5. Step 5: Solve for x
    x = 16,324,184,560.46/105,014.10
  6. Step 6: Final answer
    x = 155,447.55

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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.