Home / 103,433.05-142,700.37-67,643.51

Finding the Fourth Proportional to 103,433.05, 142,700.37 and 67,643.51

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Solution

The fourth proportional to 103,433.05, 142,700.37 and 67,643.51 is: 93,323.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,433.05 : 142,700.37 = 67,643.51 : x
  2. Step 2: Convert to fraction form
    103,433.05/142,700.37 = 67,643.51/x
  3. Step 3: Cross multiply
    103,433.05x = 142,700.37 × 67,643.51
  4. Step 4: Simplify right side
    103,433.05x = 9,652,752,937.93
  5. Step 5: Solve for x
    x = 9,652,752,937.93/103,433.05
  6. Step 6: Final answer
    x = 93,323.68

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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.