Home / 148,071.24-222,106.86-85,707.72

Finding the Fourth Proportional to 148,071.24, 222,106.86 and 85,707.72

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Solution

The fourth proportional to 148,071.24, 222,106.86 and 85,707.72 is: 128,561.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,071.24 : 222,106.86 = 85,707.72 : x
  2. Step 2: Convert to fraction form
    148,071.24/222,106.86 = 85,707.72/x
  3. Step 3: Cross multiply
    148,071.24x = 222,106.86 × 85,707.72
  4. Step 4: Simplify right side
    148,071.24x = 19,036,272,566.96
  5. Step 5: Solve for x
    x = 19,036,272,566.96/148,071.24
  6. Step 6: Final answer
    x = 128,561.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.