Home / 113,312,139.60-169,968,209.40-86,102,360.40

Finding the Fourth Proportional to 113,312,139.60, 169,968,209.40 and 86,102,360.40

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Solution

The fourth proportional to 113,312,139.60, 169,968,209.40 and 86,102,360.40 is: 129,153,540.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,312,139.60 : 169,968,209.40 = 86,102,360.40 : x
  2. Step 2: Convert to fraction form
    113,312,139.60/169,968,209.40 = 86,102,360.40/x
  3. Step 3: Cross multiply
    113,312,139.60x = 169,968,209.40 × 86,102,360.40
  4. Step 4: Simplify right side
    113,312,139.60x = 14,634,664,022,301,470
  5. Step 5: Solve for x
    x = 14,634,664,022,301,470/113,312,139.60
  6. Step 6: Final answer
    x = 129,153,540.60

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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.