Home / 191,681.09-287,577.99-56,748.59

Finding the Fourth Proportional to 191,681.09, 287,577.99 and 56,748.59

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Solution

The fourth proportional to 191,681.09, 287,577.99 and 56,748.59 is: 85,139.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,681.09 : 287,577.99 = 56,748.59 : x
  2. Step 2: Convert to fraction form
    191,681.09/287,577.99 = 56,748.59/x
  3. Step 3: Cross multiply
    191,681.09x = 287,577.99 × 56,748.59
  4. Step 4: Simplify right side
    191,681.09x = 16,319,644,009.64
  5. Step 5: Solve for x
    x = 16,319,644,009.64/191,681.09
  6. Step 6: Final answer
    x = 85,139.56

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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.