Home / 152,054.13-209,829.40-83,145.20

Finding the Fourth Proportional to 152,054.13, 209,829.40 and 83,145.20

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Solution

The fourth proportional to 152,054.13, 209,829.40 and 83,145.20 is: 114,737.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,054.13 : 209,829.40 = 83,145.20 : x
  2. Step 2: Convert to fraction form
    152,054.13/209,829.40 = 83,145.20/x
  3. Step 3: Cross multiply
    152,054.13x = 209,829.40 × 83,145.20
  4. Step 4: Simplify right side
    152,054.13x = 17,446,307,428.88
  5. Step 5: Solve for x
    x = 17,446,307,428.88/152,054.13
  6. Step 6: Final answer
    x = 114,737.48

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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.