Home / 112,428.24-155,152.99-61,443.10

Finding the Fourth Proportional to 112,428.24, 155,152.99 and 61,443.10

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Solution

The fourth proportional to 112,428.24, 155,152.99 and 61,443.10 is: 84,792.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,428.24 : 155,152.99 = 61,443.10 : x
  2. Step 2: Convert to fraction form
    112,428.24/155,152.99 = 61,443.10/x
  3. Step 3: Cross multiply
    112,428.24x = 155,152.99 × 61,443.10
  4. Step 4: Simplify right side
    112,428.24x = 9,533,080,679.87
  5. Step 5: Solve for x
    x = 9,533,080,679.87/112,428.24
  6. Step 6: Final answer
    x = 84,792.58

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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.