Home / 113,128.17-169,688.67-28,888.03

Finding the Fourth Proportional to 113,128.17, 169,688.67 and 28,888.03

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Solution

The fourth proportional to 113,128.17, 169,688.67 and 28,888.03 is: 43,331.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,128.17 : 169,688.67 = 28,888.03 : x
  2. Step 2: Convert to fraction form
    113,128.17/169,688.67 = 28,888.03/x
  3. Step 3: Cross multiply
    113,128.17x = 169,688.67 × 28,888.03
  4. Step 4: Simplify right side
    113,128.17x = 4,901,971,389.62
  5. Step 5: Solve for x
    x = 4,901,971,389.62/113,128.17
  6. Step 6: Final answer
    x = 43,331.13

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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.