Home / 117,364.74-161,901.36-72,051.72

Finding the Fourth Proportional to 117,364.74, 161,901.36 and 72,051.72

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Solution

The fourth proportional to 117,364.74, 161,901.36 and 72,051.72 is: 99,393.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,364.74 : 161,901.36 = 72,051.72 : x
  2. Step 2: Convert to fraction form
    117,364.74/161,901.36 = 72,051.72/x
  3. Step 3: Cross multiply
    117,364.74x = 161,901.36 × 72,051.72
  4. Step 4: Simplify right side
    117,364.74x = 11,665,271,458.34
  5. Step 5: Solve for x
    x = 11,665,271,458.34/117,364.74
  6. Step 6: Final answer
    x = 99,393.32

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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.