Home / 102,464.37-153,706.80-31,386.18

Finding the Fourth Proportional to 102,464.37, 153,706.80 and 31,386.18

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Solution

The fourth proportional to 102,464.37, 153,706.80 and 31,386.18 is: 47,082.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,464.37 : 153,706.80 = 31,386.18 : x
  2. Step 2: Convert to fraction form
    102,464.37/153,706.80 = 31,386.18/x
  3. Step 3: Cross multiply
    102,464.37x = 153,706.80 × 31,386.18
  4. Step 4: Simplify right side
    102,464.37x = 4,824,270,008.19
  5. Step 5: Solve for x
    x = 4,824,270,008.19/102,464.37
  6. Step 6: Final answer
    x = 47,082.42

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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.