Home / 114,339.90-157,710.32-80,420.34

Finding the Fourth Proportional to 114,339.90, 157,710.32 and 80,420.34

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Solution

The fourth proportional to 114,339.90, 157,710.32 and 80,420.34 is: 110,924.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,339.90 : 157,710.32 = 80,420.34 : x
  2. Step 2: Convert to fraction form
    114,339.90/157,710.32 = 80,420.34/x
  3. Step 3: Cross multiply
    114,339.90x = 157,710.32 × 80,420.34
  4. Step 4: Simplify right side
    114,339.90x = 12,683,117,555.91
  5. Step 5: Solve for x
    x = 12,683,117,555.91/114,339.90
  6. Step 6: Final answer
    x = 110,924.69

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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.