Home / 107,852.60-161,778.90-98,521.40

Finding the Fourth Proportional to 107,852.60, 161,778.90 and 98,521.40

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Solution

The fourth proportional to 107,852.60, 161,778.90 and 98,521.40 is: 147,782.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,852.60 : 161,778.90 = 98,521.40 : x
  2. Step 2: Convert to fraction form
    107,852.60/161,778.90 = 98,521.40/x
  3. Step 3: Cross multiply
    107,852.60x = 161,778.90 × 98,521.40
  4. Step 4: Simplify right side
    107,852.60x = 15,938,683,718.46
  5. Step 5: Solve for x
    x = 15,938,683,718.46/107,852.60
  6. Step 6: Final answer
    x = 147,782.10

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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.