Home / 142,033.50-212,937.93-70,919.58

Finding the Fourth Proportional to 142,033.50, 212,937.93 and 70,919.58

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Solution

The fourth proportional to 142,033.50, 212,937.93 and 70,919.58 is: 106,323.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,033.50 : 212,937.93 = 70,919.58 : x
  2. Step 2: Convert to fraction form
    142,033.50/212,937.93 = 70,919.58/x
  3. Step 3: Cross multiply
    142,033.50x = 212,937.93 × 70,919.58
  4. Step 4: Simplify right side
    142,033.50x = 15,101,468,561.67
  5. Step 5: Solve for x
    x = 15,101,468,561.67/142,033.50
  6. Step 6: Final answer
    x = 106,323.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.