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Finding the Fourth Proportional to 142,248.84, 213,430.64 and 63,309.08

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Solution

The fourth proportional to 142,248.84, 213,430.64 and 63,309.08 is: 94,989.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,248.84 : 213,430.64 = 63,309.08 : x
  2. Step 2: Convert to fraction form
    142,248.84/213,430.64 = 63,309.08/x
  3. Step 3: Cross multiply
    142,248.84x = 213,430.64 × 63,309.08
  4. Step 4: Simplify right side
    142,248.84x = 13,512,096,078.51
  5. Step 5: Solve for x
    x = 13,512,096,078.51/142,248.84
  6. Step 6: Final answer
    x = 94,989.15

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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.