Home / 118,017.45-162,864.81-70,272.81

Finding the Fourth Proportional to 118,017.45, 162,864.81 and 70,272.81

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Solution

The fourth proportional to 118,017.45, 162,864.81 and 70,272.81 is: 96,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,017.45 : 162,864.81 = 70,272.81 : x
  2. Step 2: Convert to fraction form
    118,017.45/162,864.81 = 70,272.81/x
  3. Step 3: Cross multiply
    118,017.45x = 162,864.81 × 70,272.81
  4. Step 4: Simplify right side
    118,017.45x = 11,444,967,848.82
  5. Step 5: Solve for x
    x = 11,444,967,848.82/118,017.45
  6. Step 6: Final answer
    x = 96,976.91

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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.