Home / 118,178.40-163,089.63-64,466.91

Finding the Fourth Proportional to 118,178.40, 163,089.63 and 64,466.91

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Solution

The fourth proportional to 118,178.40, 163,089.63 and 64,466.91 is: 88,966.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,178.40 : 163,089.63 = 64,466.91 : x
  2. Step 2: Convert to fraction form
    118,178.40/163,089.63 = 64,466.91/x
  3. Step 3: Cross multiply
    118,178.40x = 163,089.63 × 64,466.91
  4. Step 4: Simplify right side
    118,178.40x = 10,513,884,499.14
  5. Step 5: Solve for x
    x = 10,513,884,499.14/118,178.40
  6. Step 6: Final answer
    x = 88,966.21

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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.