Home / 191,329.90-286,988.47-102,756.40

Finding the Fourth Proportional to 191,329.90, 286,988.47 and 102,756.40

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Solution

The fourth proportional to 191,329.90, 286,988.47 and 102,756.40 is: 154,131.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,329.90 : 286,988.47 = 102,756.40 : x
  2. Step 2: Convert to fraction form
    191,329.90/286,988.47 = 102,756.40/x
  3. Step 3: Cross multiply
    191,329.90x = 286,988.47 × 102,756.40
  4. Step 4: Simplify right side
    191,329.90x = 29,489,901,044.35
  5. Step 5: Solve for x
    x = 29,489,901,044.35/191,329.90
  6. Step 6: Final answer
    x = 154,131.17

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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.