Home / 99,970.56-149,881.77-60,518.34

Finding the Fourth Proportional to 99,970.56, 149,881.77 and 60,518.34

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Solution

The fourth proportional to 99,970.56, 149,881.77 and 60,518.34 is: 90,732.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,970.56 : 149,881.77 = 60,518.34 : x
  2. Step 2: Convert to fraction form
    99,970.56/149,881.77 = 60,518.34/x
  3. Step 3: Cross multiply
    99,970.56x = 149,881.77 × 60,518.34
  4. Step 4: Simplify right side
    99,970.56x = 9,070,595,916.66
  5. Step 5: Solve for x
    x = 9,070,595,916.66/99,970.56
  6. Step 6: Final answer
    x = 90,732.67

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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.