Home / 103,564.40-142,812.60-73,341.68

Finding the Fourth Proportional to 103,564.40, 142,812.60 and 73,341.68

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Solution

The fourth proportional to 103,564.40, 142,812.60 and 73,341.68 is: 101,136.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,564.40 : 142,812.60 = 73,341.68 : x
  2. Step 2: Convert to fraction form
    103,564.40/142,812.60 = 73,341.68/x
  3. Step 3: Cross multiply
    103,564.40x = 142,812.60 × 73,341.68
  4. Step 4: Simplify right side
    103,564.40x = 10,474,116,009.17
  5. Step 5: Solve for x
    x = 10,474,116,009.17/103,564.40
  6. Step 6: Final answer
    x = 101,136.26

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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.