Home / 142,001.45-195,981.01-90,323.58

Finding the Fourth Proportional to 142,001.45, 195,981.01 and 90,323.58

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Solution

The fourth proportional to 142,001.45, 195,981.01 and 90,323.58 is: 124,658.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,001.45 : 195,981.01 = 90,323.58 : x
  2. Step 2: Convert to fraction form
    142,001.45/195,981.01 = 90,323.58/x
  3. Step 3: Cross multiply
    142,001.45x = 195,981.01 × 90,323.58
  4. Step 4: Simplify right side
    142,001.45x = 17,701,707,600.69
  5. Step 5: Solve for x
    x = 17,701,707,600.69/142,001.45
  6. Step 6: Final answer
    x = 124,658.64

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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.