Home / 103,186.30-142,336.76-64,885.23

Finding the Fourth Proportional to 103,186.30, 142,336.76 and 64,885.23

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Solution

The fourth proportional to 103,186.30, 142,336.76 and 64,885.23 is: 89,503.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,186.30 : 142,336.76 = 64,885.23 : x
  2. Step 2: Convert to fraction form
    103,186.30/142,336.76 = 64,885.23/x
  3. Step 3: Cross multiply
    103,186.30x = 142,336.76 × 64,885.23
  4. Step 4: Simplify right side
    103,186.30x = 9,235,552,373.94
  5. Step 5: Solve for x
    x = 9,235,552,373.94/103,186.30
  6. Step 6: Final answer
    x = 89,503.67

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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.