Home / 113,490.30-170,235.45-99,666.30

Finding the Fourth Proportional to 113,490.30, 170,235.45 and 99,666.30

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Solution

The fourth proportional to 113,490.30, 170,235.45 and 99,666.30 is: 149,499.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,490.30 : 170,235.45 = 99,666.30 : x
  2. Step 2: Convert to fraction form
    113,490.30/170,235.45 = 99,666.30/x
  3. Step 3: Cross multiply
    113,490.30x = 170,235.45 × 99,666.30
  4. Step 4: Simplify right side
    113,490.30x = 16,966,737,430.34
  5. Step 5: Solve for x
    x = 16,966,737,430.34/113,490.30
  6. Step 6: Final answer
    x = 149,499.45

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1.5x scale

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.