Home / 130,221.75-179,707.10-70,605.75

Finding the Fourth Proportional to 130,221.75, 179,707.10 and 70,605.75

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Solution

The fourth proportional to 130,221.75, 179,707.10 and 70,605.75 is: 97,436.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,221.75 : 179,707.10 = 70,605.75 : x
  2. Step 2: Convert to fraction form
    130,221.75/179,707.10 = 70,605.75/x
  3. Step 3: Cross multiply
    130,221.75x = 179,707.10 × 70,605.75
  4. Step 4: Simplify right side
    130,221.75x = 12,688,354,222.80
  5. Step 5: Solve for x
    x = 12,688,354,222.80/130,221.75
  6. Step 6: Final answer
    x = 97,436.52

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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.