Home / 106,703.68-147,080.05-72,237.55

Finding the Fourth Proportional to 106,703.68, 147,080.05 and 72,237.55

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Solution

The fourth proportional to 106,703.68, 147,080.05 and 72,237.55 is: 99,572.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,703.68 : 147,080.05 = 72,237.55 : x
  2. Step 2: Convert to fraction form
    106,703.68/147,080.05 = 72,237.55/x
  3. Step 3: Cross multiply
    106,703.68x = 147,080.05 × 72,237.55
  4. Step 4: Simplify right side
    106,703.68x = 10,624,702,465.88
  5. Step 5: Solve for x
    x = 10,624,702,465.88/106,703.68
  6. Step 6: Final answer
    x = 99,572.03

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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.