Home / 105,355.60-158,009.67-30,459.07

Finding the Fourth Proportional to 105,355.60, 158,009.67 and 30,459.07

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Solution

The fourth proportional to 105,355.60, 158,009.67 and 30,459.07 is: 45,681.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,355.60 : 158,009.67 = 30,459.07 : x
  2. Step 2: Convert to fraction form
    105,355.60/158,009.67 = 30,459.07/x
  3. Step 3: Cross multiply
    105,355.60x = 158,009.67 × 30,459.07
  4. Step 4: Simplify right side
    105,355.60x = 4,812,827,599.21
  5. Step 5: Solve for x
    x = 4,812,827,599.21/105,355.60
  6. Step 6: Final answer
    x = 45,681.74

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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.