Home / 190,547.10-262,971.15-105,691.50

Finding the Fourth Proportional to 190,547.10, 262,971.15 and 105,691.50

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Solution

The fourth proportional to 190,547.10, 262,971.15 and 105,691.50 is: 145,863.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,547.10 : 262,971.15 = 105,691.50 : x
  2. Step 2: Convert to fraction form
    190,547.10/262,971.15 = 105,691.50/x
  3. Step 3: Cross multiply
    190,547.10x = 262,971.15 × 105,691.50
  4. Step 4: Simplify right side
    190,547.10x = 27,793,815,300.23
  5. Step 5: Solve for x
    x = 27,793,815,300.23/190,547.10
  6. Step 6: Final answer
    x = 145,863.23

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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.