Home / 124,398,281.60-186,681,403.20-81,162,166.40

Finding the Fourth Proportional to 124,398,281.60, 186,681,403.20 and 81,162,166.40

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Solution

The fourth proportional to 124,398,281.60, 186,681,403.20 and 81,162,166.40 is: 121,798,041.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,398,281.60 : 186,681,403.20 = 81,162,166.40 : x
  2. Step 2: Convert to fraction form
    124,398,281.60/186,681,403.20 = 81,162,166.40/x
  3. Step 3: Cross multiply
    124,398,281.60x = 186,681,403.20 × 81,162,166.40
  4. Step 4: Simplify right side
    124,398,281.60x = 15,151,467,110,303,892
  5. Step 5: Solve for x
    x = 15,151,467,110,303,892/124,398,281.60
  6. Step 6: Final answer
    x = 121,798,041.87

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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.