Home / 102,291.05-141,123.45-102,133.36

Finding the Fourth Proportional to 102,291.05, 141,123.45 and 102,133.36

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Solution

The fourth proportional to 102,291.05, 141,123.45 and 102,133.36 is: 140,905.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,291.05 : 141,123.45 = 102,133.36 : x
  2. Step 2: Convert to fraction form
    102,291.05/141,123.45 = 102,133.36/x
  3. Step 3: Cross multiply
    102,291.05x = 141,123.45 × 102,133.36
  4. Step 4: Simplify right side
    102,291.05x = 14,413,411,417.67
  5. Step 5: Solve for x
    x = 14,413,411,417.67/102,291.05
  6. Step 6: Final answer
    x = 140,905.89

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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.