Home / 191,570.23-287,420.99-73,275.40

Finding the Fourth Proportional to 191,570.23, 287,420.99 and 73,275.40

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Solution

The fourth proportional to 191,570.23, 287,420.99 and 73,275.40 is: 109,938.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,570.23 : 287,420.99 = 73,275.40 : x
  2. Step 2: Convert to fraction form
    191,570.23/287,420.99 = 73,275.40/x
  3. Step 3: Cross multiply
    191,570.23x = 287,420.99 × 73,275.40
  4. Step 4: Simplify right side
    191,570.23x = 21,060,888,010.65
  5. Step 5: Solve for x
    x = 21,060,888,010.65/191,570.23
  6. Step 6: Final answer
    x = 109,938.21

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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.