Home / 118,421.40-163,416.64-64,708.24

Finding the Fourth Proportional to 118,421.40, 163,416.64 and 64,708.24

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Solution

The fourth proportional to 118,421.40, 163,416.64 and 64,708.24 is: 89,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,421.40 : 163,416.64 = 64,708.24 : x
  2. Step 2: Convert to fraction form
    118,421.40/163,416.64 = 64,708.24/x
  3. Step 3: Cross multiply
    118,421.40x = 163,416.64 × 64,708.24
  4. Step 4: Simplify right side
    118,421.40x = 10,574,403,161.11
  5. Step 5: Solve for x
    x = 10,574,403,161.11/118,421.40
  6. Step 6: Final answer
    x = 89,294.70

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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.