Home / 114,340.90-157,711.70-80,421.34

Finding the Fourth Proportional to 114,340.90, 157,711.70 and 80,421.34

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Solution

The fourth proportional to 114,340.90, 157,711.70 and 80,421.34 is: 110,926.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,340.90 : 157,711.70 = 80,421.34 : x
  2. Step 2: Convert to fraction form
    114,340.90/157,711.70 = 80,421.34/x
  3. Step 3: Cross multiply
    114,340.90x = 157,711.70 × 80,421.34
  4. Step 4: Simplify right side
    114,340.90x = 12,683,386,247.68
  5. Step 5: Solve for x
    x = 12,683,386,247.68/114,340.90
  6. Step 6: Final answer
    x = 110,926.07

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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.