Home / 106,531.40-159,602.70-64,929.80

Finding the Fourth Proportional to 106,531.40, 159,602.70 and 64,929.80

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Solution

The fourth proportional to 106,531.40, 159,602.70 and 64,929.80 is: 97,276.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,531.40 : 159,602.70 = 64,929.80 : x
  2. Step 2: Convert to fraction form
    106,531.40/159,602.70 = 64,929.80/x
  3. Step 3: Cross multiply
    106,531.40x = 159,602.70 × 64,929.80
  4. Step 4: Simplify right side
    106,531.40x = 10,362,971,390.46
  5. Step 5: Solve for x
    x = 10,362,971,390.46/106,531.40
  6. Step 6: Final answer
    x = 97,276.22

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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.