Home / 83,430.81-114,903.45-72,096.57

Finding the Fourth Proportional to 83,430.81, 114,903.45 and 72,096.57

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Solution

The fourth proportional to 83,430.81, 114,903.45 and 72,096.57 is: 99,293.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,430.81 : 114,903.45 = 72,096.57 : x
  2. Step 2: Convert to fraction form
    83,430.81/114,903.45 = 72,096.57/x
  3. Step 3: Cross multiply
    83,430.81x = 114,903.45 × 72,096.57
  4. Step 4: Simplify right side
    83,430.81x = 8,284,144,626.17
  5. Step 5: Solve for x
    x = 8,284,144,626.17/83,430.81
  6. Step 6: Final answer
    x = 99,293.59

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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.