Home / 103,303.84-155,189.04-89,307.04

Finding the Fourth Proportional to 103,303.84, 155,189.04 and 89,307.04

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Solution

The fourth proportional to 103,303.84, 155,189.04 and 89,307.04 is: 134,162.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,303.84 : 155,189.04 = 89,307.04 : x
  2. Step 2: Convert to fraction form
    103,303.84/155,189.04 = 89,307.04/x
  3. Step 3: Cross multiply
    103,303.84x = 155,189.04 × 89,307.04
  4. Step 4: Simplify right side
    103,303.84x = 13,859,473,802.84
  5. Step 5: Solve for x
    x = 13,859,473,802.84/103,303.84
  6. Step 6: Final answer
    x = 134,162.23

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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.