Home / 105,013.10-157,519.65-103,630.70

Finding the Fourth Proportional to 105,013.10, 157,519.65 and 103,630.70

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Solution

The fourth proportional to 105,013.10, 157,519.65 and 103,630.70 is: 155,446.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,013.10 : 157,519.65 = 103,630.70 : x
  2. Step 2: Convert to fraction form
    105,013.10/157,519.65 = 103,630.70/x
  3. Step 3: Cross multiply
    105,013.10x = 157,519.65 × 103,630.70
  4. Step 4: Simplify right side
    105,013.10x = 16,323,871,593.26
  5. Step 5: Solve for x
    x = 16,323,871,593.26/105,013.10
  6. Step 6: Final answer
    x = 155,446.05

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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.