Home / 112,527.79-155,307.44-64,808.76

Finding the Fourth Proportional to 112,527.79, 155,307.44 and 64,808.76

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Solution

The fourth proportional to 112,527.79, 155,307.44 and 64,808.76 is: 89,447.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,527.79 : 155,307.44 = 64,808.76 : x
  2. Step 2: Convert to fraction form
    112,527.79/155,307.44 = 64,808.76/x
  3. Step 3: Cross multiply
    112,527.79x = 155,307.44 × 64,808.76
  4. Step 4: Simplify right side
    112,527.79x = 10,065,283,349.60
  5. Step 5: Solve for x
    x = 10,065,283,349.60/112,527.79
  6. Step 6: Final answer
    x = 89,447.09

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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.