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Finding the Fourth Proportional to 107,010, 147,683.88 and 61,688.88

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Solution

The fourth proportional to 107,010, 147,683.88 and 61,688.88 is: 85,136.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,010 : 147,683.88 = 61,688.88 : x
  2. Step 2: Convert to fraction form
    107,010/147,683.88 = 61,688.88/x
  3. Step 3: Cross multiply
    107,010x = 147,683.88 × 61,688.88
  4. Step 4: Simplify right side
    107,010x = 9,110,453,151.25
  5. Step 5: Solve for x
    x = 9,110,453,151.25/107,010
  6. Step 6: Final answer
    x = 85,136.47

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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.