Home / 112,980.04-155,912.64-62,679.04

Finding the Fourth Proportional to 112,980.04, 155,912.64 and 62,679.04

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Solution

The fourth proportional to 112,980.04, 155,912.64 and 62,679.04 is: 86,497.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,980.04 : 155,912.64 = 62,679.04 : x
  2. Step 2: Convert to fraction form
    112,980.04/155,912.64 = 62,679.04/x
  3. Step 3: Cross multiply
    112,980.04x = 155,912.64 × 62,679.04
  4. Step 4: Simplify right side
    112,980.04x = 9,772,454,599.07
  5. Step 5: Solve for x
    x = 9,772,454,599.07/112,980.04
  6. Step 6: Final answer
    x = 86,497.18

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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.