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Finding the Fourth Proportional to 163,856.71, 245,784.95 and 45,528

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Solution

The fourth proportional to 163,856.71, 245,784.95 and 45,528 is: 68,291.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,856.71 : 245,784.95 = 45,528 : x
  2. Step 2: Convert to fraction form
    163,856.71/245,784.95 = 45,528/x
  3. Step 3: Cross multiply
    163,856.71x = 245,784.95 × 45,528
  4. Step 4: Simplify right side
    163,856.71x = 11,190,097,203.60
  5. Step 5: Solve for x
    x = 11,190,097,203.60/163,856.71
  6. Step 6: Final answer
    x = 68,291.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.