Home / 112,425.02-155,148.75-61,440.91

Finding the Fourth Proportional to 112,425.02, 155,148.75 and 61,440.91

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Solution

The fourth proportional to 112,425.02, 155,148.75 and 61,440.91 is: 84,789.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,425.02 : 155,148.75 = 61,440.91 : x
  2. Step 2: Convert to fraction form
    112,425.02/155,148.75 = 61,440.91/x
  3. Step 3: Cross multiply
    112,425.02x = 155,148.75 × 61,440.91
  4. Step 4: Simplify right side
    112,425.02x = 9,532,480,151.09
  5. Step 5: Solve for x
    x = 9,532,480,151.09/112,425.02
  6. Step 6: Final answer
    x = 84,789.67

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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.