Home / 108,938.40-163,407.60-46,615.20

Finding the Fourth Proportional to 108,938.40, 163,407.60 and 46,615.20

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Solution

The fourth proportional to 108,938.40, 163,407.60 and 46,615.20 is: 69,922.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,938.40 : 163,407.60 = 46,615.20 : x
  2. Step 2: Convert to fraction form
    108,938.40/163,407.60 = 46,615.20/x
  3. Step 3: Cross multiply
    108,938.40x = 163,407.60 × 46,615.20
  4. Step 4: Simplify right side
    108,938.40x = 7,617,277,955.52
  5. Step 5: Solve for x
    x = 7,617,277,955.52/108,938.40
  6. Step 6: Final answer
    x = 69,922.80

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1.5x scale

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.