Home / 202,830.98-279,905.10-112,190.81

Finding the Fourth Proportional to 202,830.98, 279,905.10 and 112,190.81

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Solution

The fourth proportional to 202,830.98, 279,905.10 and 112,190.81 is: 154,822.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,830.98 : 279,905.10 = 112,190.81 : x
  2. Step 2: Convert to fraction form
    202,830.98/279,905.10 = 112,190.81/x
  3. Step 3: Cross multiply
    202,830.98x = 279,905.10 × 112,190.81
  4. Step 4: Simplify right side
    202,830.98x = 31,402,779,892.13
  5. Step 5: Solve for x
    x = 31,402,779,892.13/202,830.98
  6. Step 6: Final answer
    x = 154,822.40

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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.