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Finding the Fourth Proportional to 107,153.68, 147,869.40 and 59,406.88

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Solution

The fourth proportional to 107,153.68, 147,869.40 and 59,406.88 is: 81,980.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,153.68 : 147,869.40 = 59,406.88 : x
  2. Step 2: Convert to fraction form
    107,153.68/147,869.40 = 59,406.88/x
  3. Step 3: Cross multiply
    107,153.68x = 147,869.40 × 59,406.88
  4. Step 4: Simplify right side
    107,153.68x = 8,784,459,701.47
  5. Step 5: Solve for x
    x = 8,784,459,701.47/107,153.68
  6. Step 6: Final answer
    x = 81,980.01

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1.5x scale

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.