Home / 112,775.59-155,623.02-61,788.25

Finding the Fourth Proportional to 112,775.59, 155,623.02 and 61,788.25

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Solution

The fourth proportional to 112,775.59, 155,623.02 and 61,788.25 is: 85,263.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,775.59 : 155,623.02 = 61,788.25 : x
  2. Step 2: Convert to fraction form
    112,775.59/155,623.02 = 61,788.25/x
  3. Step 3: Cross multiply
    112,775.59x = 155,623.02 × 61,788.25
  4. Step 4: Simplify right side
    112,775.59x = 9,615,674,065.52
  5. Step 5: Solve for x
    x = 9,615,674,065.52/112,775.59
  6. Step 6: Final answer
    x = 85,263.79

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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.