Home / 103,417.48-155,126.63-68,349.34

Finding the Fourth Proportional to 103,417.48, 155,126.63 and 68,349.34

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Solution

The fourth proportional to 103,417.48, 155,126.63 and 68,349.34 is: 102,524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,417.48 : 155,126.63 = 68,349.34 : x
  2. Step 2: Convert to fraction form
    103,417.48/155,126.63 = 68,349.34/x
  3. Step 3: Cross multiply
    103,417.48x = 155,126.63 × 68,349.34
  4. Step 4: Simplify right side
    103,417.48x = 10,602,802,435.18
  5. Step 5: Solve for x
    x = 10,602,802,435.18/103,417.48
  6. Step 6: Final answer
    x = 102,524.28

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1.5x scale

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.