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Finding the Fourth Proportional to 176,229, 243,196.29 and 100,779.12

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Solution

The fourth proportional to 176,229, 243,196.29 and 100,779.12 is: 139,075.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    176,229 : 243,196.29 = 100,779.12 : x
  2. Step 2: Convert to fraction form
    176,229/243,196.29 = 100,779.12/x
  3. Step 3: Cross multiply
    176,229x = 243,196.29 × 100,779.12
  4. Step 4: Simplify right side
    176,229x = 24,509,108,093.46
  5. Step 5: Solve for x
    x = 24,509,108,093.46/176,229
  6. Step 6: Final answer
    x = 139,075.34

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1.5x scale

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.