Home / 113,328.40-169,992.60-112,637.20

Finding the Fourth Proportional to 113,328.40, 169,992.60 and 112,637.20

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Solution

The fourth proportional to 113,328.40, 169,992.60 and 112,637.20 is: 168,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,328.40 : 169,992.60 = 112,637.20 : x
  2. Step 2: Convert to fraction form
    113,328.40/169,992.60 = 112,637.20/x
  3. Step 3: Cross multiply
    113,328.40x = 169,992.60 × 112,637.20
  4. Step 4: Simplify right side
    113,328.40x = 19,147,490,484.72
  5. Step 5: Solve for x
    x = 19,147,490,484.72/113,328.40
  6. Step 6: Final answer
    x = 168,955.80

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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.