Home / 105,530.81-145,603.64-67,826.93

Finding the Fourth Proportional to 105,530.81, 145,603.64 and 67,826.93

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Solution

The fourth proportional to 105,530.81, 145,603.64 and 67,826.93 is: 93,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,530.81 : 145,603.64 = 67,826.93 : x
  2. Step 2: Convert to fraction form
    105,530.81/145,603.64 = 67,826.93/x
  3. Step 3: Cross multiply
    105,530.81x = 145,603.64 × 67,826.93
  4. Step 4: Simplify right side
    105,530.81x = 9,875,847,339.57
  5. Step 5: Solve for x
    x = 9,875,847,339.57/105,530.81
  6. Step 6: Final answer
    x = 93,582.60

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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.