Home / 152,795.40-210,835.17-84,812.88

Finding the Fourth Proportional to 152,795.40, 210,835.17 and 84,812.88

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Solution

The fourth proportional to 152,795.40, 210,835.17 and 84,812.88 is: 117,029.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    152,795.40 : 210,835.17 = 84,812.88 : x
  2. Step 2: Convert to fraction form
    152,795.40/210,835.17 = 84,812.88/x
  3. Step 3: Cross multiply
    152,795.40x = 210,835.17 × 84,812.88
  4. Step 4: Simplify right side
    152,795.40x = 17,881,537,972.99
  5. Step 5: Solve for x
    x = 17,881,537,972.99/152,795.40
  6. Step 6: Final answer
    x = 117,029.30

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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.