Home / 118,343.04-163,238.40-89,986.56

Finding the Fourth Proportional to 118,343.04, 163,238.40 and 89,986.56

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Solution

The fourth proportional to 118,343.04, 163,238.40 and 89,986.56 is: 124,124.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,343.04 : 163,238.40 = 89,986.56 : x
  2. Step 2: Convert to fraction form
    118,343.04/163,238.40 = 89,986.56/x
  3. Step 3: Cross multiply
    118,343.04x = 163,238.40 × 89,986.56
  4. Step 4: Simplify right side
    118,343.04x = 14,689,262,075.90
  5. Step 5: Solve for x
    x = 14,689,262,075.90/118,343.04
  6. Step 6: Final answer
    x = 124,124.43

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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.