Home / 112,019.18-154,501.10-76,148.74

Finding the Fourth Proportional to 112,019.18, 154,501.10 and 76,148.74

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Solution

The fourth proportional to 112,019.18, 154,501.10 and 76,148.74 is: 105,027.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,019.18 : 154,501.10 = 76,148.74 : x
  2. Step 2: Convert to fraction form
    112,019.18/154,501.10 = 76,148.74/x
  3. Step 3: Cross multiply
    112,019.18x = 154,501.10 × 76,148.74
  4. Step 4: Simplify right side
    112,019.18x = 11,765,063,321.11
  5. Step 5: Solve for x
    x = 11,765,063,321.11/112,019.18
  6. Step 6: Final answer
    x = 105,027.22

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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.