Home / 72,176.03-107,707.61-63,429.78

Finding the Fourth Proportional to 72,176.03, 107,707.61 and 63,429.78

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Solution

The fourth proportional to 72,176.03, 107,707.61 and 63,429.78 is: 94,655.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,176.03 : 107,707.61 = 63,429.78 : x
  2. Step 2: Convert to fraction form
    72,176.03/107,707.61 = 63,429.78/x
  3. Step 3: Cross multiply
    72,176.03x = 107,707.61 × 63,429.78
  4. Step 4: Simplify right side
    72,176.03x = 6,831,869,689.48
  5. Step 5: Solve for x
    x = 6,831,869,689.48/72,176.03
  6. Step 6: Final answer
    x = 94,655.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.