Home / 147,881.12-221,953.50-69,039.77

Finding the Fourth Proportional to 147,881.12, 221,953.50 and 69,039.77

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Solution

The fourth proportional to 147,881.12, 221,953.50 and 69,039.77 is: 103,621.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,881.12 : 221,953.50 = 69,039.77 : x
  2. Step 2: Convert to fraction form
    147,881.12/221,953.50 = 69,039.77/x
  3. Step 3: Cross multiply
    147,881.12x = 221,953.50 × 69,039.77
  4. Step 4: Simplify right side
    147,881.12x = 15,323,617,480.93
  5. Step 5: Solve for x
    x = 15,323,617,480.93/147,881.12
  6. Step 6: Final answer
    x = 103,621.19

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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.