Home / 118,133.93-163,028.76-64,421.89

Finding the Fourth Proportional to 118,133.93, 163,028.76 and 64,421.89

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Solution

The fourth proportional to 118,133.93, 163,028.76 and 64,421.89 is: 88,904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,133.93 : 163,028.76 = 64,421.89 : x
  2. Step 2: Convert to fraction form
    118,133.93/163,028.76 = 64,421.89/x
  3. Step 3: Cross multiply
    118,133.93x = 163,028.76 × 64,421.89
  4. Step 4: Simplify right side
    118,133.93x = 10,502,620,028.41
  5. Step 5: Solve for x
    x = 10,502,620,028.41/118,133.93
  6. Step 6: Final answer
    x = 88,904.35

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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.