Home / 208,398.19-287,589.79-112,904.89

Finding the Fourth Proportional to 208,398.19, 287,589.79 and 112,904.89

Calculator

Solution

The fourth proportional to 208,398.19, 287,589.79 and 112,904.89 is: 155,808.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,398.19 : 287,589.79 = 112,904.89 : x
  2. Step 2: Convert to fraction form
    208,398.19/287,589.79 = 112,904.89/x
  3. Step 3: Cross multiply
    208,398.19x = 287,589.79 × 112,904.89
  4. Step 4: Simplify right side
    208,398.19x = 32,470,291,602.60
  5. Step 5: Solve for x
    x = 32,470,291,602.60/208,398.19
  6. Step 6: Final answer
    x = 155,808.89

Related Problems

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.