Home / 191,748.71-287,623.05-73,420.04

Finding the Fourth Proportional to 191,748.71, 287,623.05 and 73,420.04

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Solution

The fourth proportional to 191,748.71, 287,623.05 and 73,420.04 is: 110,130.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,748.71 : 287,623.05 = 73,420.04 : x
  2. Step 2: Convert to fraction form
    191,748.71/287,623.05 = 73,420.04/x
  3. Step 3: Cross multiply
    191,748.71x = 287,623.05 × 73,420.04
  4. Step 4: Simplify right side
    191,748.71x = 21,117,294,397.81
  5. Step 5: Solve for x
    x = 21,117,294,397.81/191,748.71
  6. Step 6: Final answer
    x = 110,130.05

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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.