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Finding the Fourth Proportional to 109,030.60, 163,424.40 and 42,448.60

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Solution

The fourth proportional to 109,030.60, 163,424.40 and 42,448.60 is: 63,625.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,030.60 : 163,424.40 = 42,448.60 : x
  2. Step 2: Convert to fraction form
    109,030.60/163,424.40 = 42,448.60/x
  3. Step 3: Cross multiply
    109,030.60x = 163,424.40 × 42,448.60
  4. Step 4: Simplify right side
    109,030.60x = 6,937,136,985.84
  5. Step 5: Solve for x
    x = 6,937,136,985.84/109,030.60
  6. Step 6: Final answer
    x = 63,625.60

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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.