Home / 103,564.10-155,461.35-64,165.70

Finding the Fourth Proportional to 103,564.10, 155,461.35 and 64,165.70

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Solution

The fourth proportional to 103,564.10, 155,461.35 and 64,165.70 is: 96,319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,564.10 : 155,461.35 = 64,165.70 : x
  2. Step 2: Convert to fraction form
    103,564.10/155,461.35 = 64,165.70/x
  3. Step 3: Cross multiply
    103,564.10x = 155,461.35 × 64,165.70
  4. Step 4: Simplify right side
    103,564.10x = 9,975,286,345.70
  5. Step 5: Solve for x
    x = 9,975,286,345.70/103,564.10
  6. Step 6: Final answer
    x = 96,319.93

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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.