Home / 106,701.55-147,077.09-72,235.42

Finding the Fourth Proportional to 106,701.55, 147,077.09 and 72,235.42

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Solution

The fourth proportional to 106,701.55, 147,077.09 and 72,235.42 is: 99,569.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,701.55 : 147,077.09 = 72,235.42 : x
  2. Step 2: Convert to fraction form
    106,701.55/147,077.09 = 72,235.42/x
  3. Step 3: Cross multiply
    106,701.55x = 147,077.09 × 72,235.42
  4. Step 4: Simplify right side
    106,701.55x = 10,624,174,633.14
  5. Step 5: Solve for x
    x = 10,624,174,633.14/106,701.55
  6. Step 6: Final answer
    x = 99,569.08

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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.