Home / 118,419.18-163,420.38-70,700.46

Finding the Fourth Proportional to 118,419.18, 163,420.38 and 70,700.46

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Solution

The fourth proportional to 118,419.18, 163,420.38 and 70,700.46 is: 97,567.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,419.18 : 163,420.38 = 70,700.46 : x
  2. Step 2: Convert to fraction form
    118,419.18/163,420.38 = 70,700.46/x
  3. Step 3: Cross multiply
    118,419.18x = 163,420.38 × 70,700.46
  4. Step 4: Simplify right side
    118,419.18x = 11,553,896,039.37
  5. Step 5: Solve for x
    x = 11,553,896,039.37/118,419.18
  6. Step 6: Final answer
    x = 97,567.78

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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.