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Finding the Fourth Proportional to 118,018.95, 162,866.88 and 70,274.31

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Solution

The fourth proportional to 118,018.95, 162,866.88 and 70,274.31 is: 96,978.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,018.95 : 162,866.88 = 70,274.31 : x
  2. Step 2: Convert to fraction form
    118,018.95/162,866.88 = 70,274.31/x
  3. Step 3: Cross multiply
    118,018.95x = 162,866.88 × 70,274.31
  4. Step 4: Simplify right side
    118,018.95x = 11,445,357,613.85
  5. Step 5: Solve for x
    x = 11,445,357,613.85/118,018.95
  6. Step 6: Final answer
    x = 96,978.98

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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.