Home / 112,569.37-155,346.95-61,581

Finding the Fourth Proportional to 112,569.37, 155,346.95 and 61,581

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Solution

The fourth proportional to 112,569.37, 155,346.95 and 61,581 is: 84,982.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,569.37 : 155,346.95 = 61,581 : x
  2. Step 2: Convert to fraction form
    112,569.37/155,346.95 = 61,581/x
  3. Step 3: Cross multiply
    112,569.37x = 155,346.95 × 61,581
  4. Step 4: Simplify right side
    112,569.37x = 9,566,420,681.90
  5. Step 5: Solve for x
    x = 9,566,420,681.90/112,569.37
  6. Step 6: Final answer
    x = 84,982.45

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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.