Home / 103,989.32-143,494.80-58,663.16

Finding the Fourth Proportional to 103,989.32, 143,494.80 and 58,663.16

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Solution

The fourth proportional to 103,989.32, 143,494.80 and 58,663.16 is: 80,949.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,989.32 : 143,494.80 = 58,663.16 : x
  2. Step 2: Convert to fraction form
    103,989.32/143,494.80 = 58,663.16/x
  3. Step 3: Cross multiply
    103,989.32x = 143,494.80 × 58,663.16
  4. Step 4: Simplify right side
    103,989.32x = 8,417,858,411.57
  5. Step 5: Solve for x
    x = 8,417,858,411.57/103,989.32
  6. Step 6: Final answer
    x = 80,949.26

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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.