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Finding the Fourth Proportional to 156,303, 215,698.23 and 84,683.52

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Solution

The fourth proportional to 156,303, 215,698.23 and 84,683.52 is: 116,863.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,303 : 215,698.23 = 84,683.52 : x
  2. Step 2: Convert to fraction form
    156,303/215,698.23 = 84,683.52/x
  3. Step 3: Cross multiply
    156,303x = 215,698.23 × 84,683.52
  4. Step 4: Simplify right side
    156,303x = 18,266,085,374.17
  5. Step 5: Solve for x
    x = 18,266,085,374.17/156,303
  6. Step 6: Final answer
    x = 116,863.31

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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.