Home / 217,176.02-299,702.70-121,683.40

Finding the Fourth Proportional to 217,176.02, 299,702.70 and 121,683.40

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Solution

The fourth proportional to 217,176.02, 299,702.70 and 121,683.40 is: 167,922.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,176.02 : 299,702.70 = 121,683.40 : x
  2. Step 2: Convert to fraction form
    217,176.02/299,702.70 = 121,683.40/x
  3. Step 3: Cross multiply
    217,176.02x = 299,702.70 × 121,683.40
  4. Step 4: Simplify right side
    217,176.02x = 36,468,842,705.50
  5. Step 5: Solve for x
    x = 36,468,842,705.50/217,176.02
  6. Step 6: Final answer
    x = 167,922.97

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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.