Home / 112,424.67-155,146.73-61,436.79

Finding the Fourth Proportional to 112,424.67, 155,146.73 and 61,436.79

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Solution

The fourth proportional to 112,424.67, 155,146.73 and 61,436.79 is: 84,783.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,424.67 : 155,146.73 = 61,436.79 : x
  2. Step 2: Convert to fraction form
    112,424.67/155,146.73 = 61,436.79/x
  3. Step 3: Cross multiply
    112,424.67x = 155,146.73 × 61,436.79
  4. Step 4: Simplify right side
    112,424.67x = 9,531,716,763.01
  5. Step 5: Solve for x
    x = 9,531,716,763.01/112,424.67
  6. Step 6: Final answer
    x = 84,783.14

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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.