Home / 118,148.71-163,038.72-67,154.35

Finding the Fourth Proportional to 118,148.71, 163,038.72 and 67,154.35

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Solution

The fourth proportional to 118,148.71, 163,038.72 and 67,154.35 is: 92,669.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,148.71 : 163,038.72 = 67,154.35 : x
  2. Step 2: Convert to fraction form
    118,148.71/163,038.72 = 67,154.35/x
  3. Step 3: Cross multiply
    118,148.71x = 163,038.72 × 67,154.35
  4. Step 4: Simplify right side
    118,148.71x = 10,948,759,416.36
  5. Step 5: Solve for x
    x = 10,948,759,416.36/118,148.71
  6. Step 6: Final answer
    x = 92,669.31

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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.