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Finding the Fourth Proportional to 117,444.66, 162,005.85 and 74,955.30

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Solution

The fourth proportional to 117,444.66, 162,005.85 and 74,955.30 is: 103,395.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,444.66 : 162,005.85 = 74,955.30 : x
  2. Step 2: Convert to fraction form
    117,444.66/162,005.85 = 74,955.30/x
  3. Step 3: Cross multiply
    117,444.66x = 162,005.85 × 74,955.30
  4. Step 4: Simplify right side
    117,444.66x = 12,143,197,088.51
  5. Step 5: Solve for x
    x = 12,143,197,088.51/117,444.66
  6. Step 6: Final answer
    x = 103,395.06

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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.