Home / 105,622.11-158,459.10-30,742.92

Finding the Fourth Proportional to 105,622.11, 158,459.10 and 30,742.92

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Solution

The fourth proportional to 105,622.11, 158,459.10 and 30,742.92 is: 46,121.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,622.11 : 158,459.10 = 30,742.92 : x
  2. Step 2: Convert to fraction form
    105,622.11/158,459.10 = 30,742.92/x
  3. Step 3: Cross multiply
    105,622.11x = 158,459.10 × 30,742.92
  4. Step 4: Simplify right side
    105,622.11x = 4,871,495,434.57
  5. Step 5: Solve for x
    x = 4,871,495,434.57/105,622.11
  6. Step 6: Final answer
    x = 46,121.93

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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.