Home / 102,708.42-141,744.30-57,386.67

Finding the Fourth Proportional to 102,708.42, 141,744.30 and 57,386.67

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Solution

The fourth proportional to 102,708.42, 141,744.30 and 57,386.67 is: 79,197.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,708.42 : 141,744.30 = 57,386.67 : x
  2. Step 2: Convert to fraction form
    102,708.42/141,744.30 = 57,386.67/x
  3. Step 3: Cross multiply
    102,708.42x = 141,744.30 × 57,386.67
  4. Step 4: Simplify right side
    102,708.42x = 8,134,233,368.48
  5. Step 5: Solve for x
    x = 8,134,233,368.48/102,708.42
  6. Step 6: Final answer
    x = 79,197.34

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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.