Home / 191,330.31-264,038.26-105,299.20

Finding the Fourth Proportional to 191,330.31, 264,038.26 and 105,299.20

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Solution

The fourth proportional to 191,330.31, 264,038.26 and 105,299.20 is: 145,314.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,330.31 : 264,038.26 = 105,299.20 : x
  2. Step 2: Convert to fraction form
    191,330.31/264,038.26 = 105,299.20/x
  3. Step 3: Cross multiply
    191,330.31x = 264,038.26 × 105,299.20
  4. Step 4: Simplify right side
    191,330.31x = 27,803,018,009.06
  5. Step 5: Solve for x
    x = 27,803,018,009.06/191,330.31
  6. Step 6: Final answer
    x = 145,314.23

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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.