Home / 118,486.16-163,510.53-64,771.20

Finding the Fourth Proportional to 118,486.16, 163,510.53 and 64,771.20

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Solution

The fourth proportional to 118,486.16, 163,510.53 and 64,771.20 is: 89,384.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,486.16 : 163,510.53 = 64,771.20 : x
  2. Step 2: Convert to fraction form
    118,486.16/163,510.53 = 64,771.20/x
  3. Step 3: Cross multiply
    118,486.16x = 163,510.53 × 64,771.20
  4. Step 4: Simplify right side
    118,486.16x = 10,590,773,240.74
  5. Step 5: Solve for x
    x = 10,590,773,240.74/118,486.16
  6. Step 6: Final answer
    x = 89,384.05

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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.