Home / 105,885.15-146,129.18-70,012.95

Finding the Fourth Proportional to 105,885.15, 146,129.18 and 70,012.95

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Solution

The fourth proportional to 105,885.15, 146,129.18 and 70,012.95 is: 96,622.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,885.15 : 146,129.18 = 70,012.95 : x
  2. Step 2: Convert to fraction form
    105,885.15/146,129.18 = 70,012.95/x
  3. Step 3: Cross multiply
    105,885.15x = 146,129.18 × 70,012.95
  4. Step 4: Simplify right side
    105,885.15x = 10,230,934,622.82
  5. Step 5: Solve for x
    x = 10,230,934,622.82/105,885.15
  6. Step 6: Final answer
    x = 96,622.94

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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.