Home / 191,386.56-264,111.36-105,343.68

Finding the Fourth Proportional to 191,386.56, 264,111.36 and 105,343.68

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Solution

The fourth proportional to 191,386.56, 264,111.36 and 105,343.68 is: 145,373.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,386.56 : 264,111.36 = 105,343.68 : x
  2. Step 2: Convert to fraction form
    191,386.56/264,111.36 = 105,343.68/x
  3. Step 3: Cross multiply
    191,386.56x = 264,111.36 × 105,343.68
  4. Step 4: Simplify right side
    191,386.56x = 27,822,462,592.20
  5. Step 5: Solve for x
    x = 27,822,462,592.20/191,386.56
  6. Step 6: Final answer
    x = 145,373.13

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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.