Home / 88,430.56-122,143.76-64,192.84

Finding the Fourth Proportional to 88,430.56, 122,143.76 and 64,192.84

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Solution

The fourth proportional to 88,430.56, 122,143.76 and 64,192.84 is: 88,665.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,430.56 : 122,143.76 = 64,192.84 : x
  2. Step 2: Convert to fraction form
    88,430.56/122,143.76 = 64,192.84/x
  3. Step 3: Cross multiply
    88,430.56x = 122,143.76 × 64,192.84
  4. Step 4: Simplify right side
    88,430.56x = 7,840,754,842.68
  5. Step 5: Solve for x
    x = 7,840,754,842.68/88,430.56
  6. Step 6: Final answer
    x = 88,665.67

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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.